T4H 250 TMA 125-1250 4p F F InN=100%In
Product ID:74478
Updated: 2026/4/9
Key Features
- 1Ensure reliable operation with a thermomagnetic release mechanism. 2、Handle currents from 125 to 1250 A with a 250 A rated uninterrupted current. 3、Withstand 8000 electrical and 20000 mechanical durability cycles. 4、Meet IEC 60947 standards for safety and performance compliance. 5、Protect industrial applications like transformers and generators.
Technical Specifications
Detailed engineering parameters
| Parameter | Value | Parameter | Value |
|---|---|---|---|
| Environmental Information | 9AKK10103A1057 | Product Net Width | 140 mm |
| Product Net Height | 205 mm | Product Net Depth / Length | 103.5 mm |
| Product Net Weight | 3.05 kg | Product Main Type | SACE Tmax T |
| Product Name | Moulded Case Circuit Breaker | Product Type | Automatic Circuit Breaker |
| Suitable For | T4 | Suitable for Product Class | Moulded Case Circuit Breakers |
| Version | F | Electrical Durability | 8000 cycle 120 cycles per hour |
| Mechanical Durability | 20000 cycle 240 cycles per hour | Number of Poles | 4 |
| Power Loss | at Rated Operating Conditions per Pole 6.2 W | Rated Current (In) | 125 A |
| Rated Impulse Withstand Voltage (Uimp) | 8 kV | Rated Insulation Voltage (Ui) | 1000 V |
| Rated Operational Voltage | 690 V AC 750 V DC | Rated Service Short-Circuit Breaking Capacity (Ics) | (220 V AC) 100 kA (230 V AC) 100 kA (380 V AC) 70 kA (400 V AC) 70 kA (415 V AC) 70 kA (440 V AC) 65 kA (500 V AC) 50 kA (690 V) 40 kA |
| Rated Ultimate Short-Circuit Breaking Capacity (Icu) | (220 V AC) 100 kA (230 V AC) 100 kA (380 V AC) 70 kA (400 V AC) 70 kA (415 V AC) 70 kA (440 V AC) 65 kA (500 V AC) 50 kA (690 V AC) 40 kA (250 V DC) 2 Poles in Series 70 kA (500 V DC) 2 Poles in Series 50 kA (750 V DC) 3 Poles in Series 36 kA | Rated Uninterrupted Current (Iu) | 250 A |
| Release | TMA | Release Type | TM |
| Short-Circuit Performance Level | H | Standards | IEC |
| Sub-type | T4 | Terminal Connection Type | Fixed Circuit-Breakers Front |
| Test Voltage Max (Utest) | 3500 V | ETIM 8 | EC000228 - Power circuit-breaker for trafo/generator/installation protection |
| Object Classification Code | Q | UNSPSC | 39121100 |
| WEEE Category | 5. Small Equipment (No External Dimension More Than 50 cm) | eClass | V11.1 : 27370409 |
| Manufacturer ID | 1SDA054279R1 |
Specifications may be subject to change without notice